20 Most Recent Mitsubishi WS-55807 TV - Page 3 Questions & Answers


in display settings set the resolution at 1080i

Mitsubishi... | Answered on Aug 09, 2012


Flashes of standby lights are fault indications. Visit the site named "Electro-help' for details. Check this link, and select the site named above.

Mitsubishi... | Answered on Jul 15, 2012


Any blinking lights? Green or red? How many times does it flash?

Mitsubishi... | Answered on Jul 05, 2012


Check this link for more details.

Mitsubishi... | Answered on Jun 24, 2012


If the set constantly blinks (attempts to boot DM up) try something else first---pull front speaker grill off and remove inspection plate behind it--note the bundle of wires coming down from front controls--follow to right and down---unplug the two inline plugs and see if set turns on--remote will still function with plugs undone.

If set works DM is ok and you have a problem on the keyboard--bad reset microswitch.

The DM as seen from the rear is the LARGE metal box on the far left side of the chassis.

It has several numbered plugs and plugs into the board beneath it.

Mitsubishi... | Answered on Jun 06, 2012


Check and replace the microswitch soldered diretly to front panel circuit board. You have to open the TV. Get more details from the below referred site, and by click open the ads by the side and bottom of each posts.

Visit this site for more details. Type in the site name "Electro-help" either Google or Yahoo search box [not in the address bar of your browser], and click search. It is an electronic equipments service help site. All details you want are there. Note the position of hyphen in between words in site name, when you type it in. The site will appear as it is in web; subtitled as electronics equipments' repair help.

Mitsubishi... | Answered on May 27, 2012


Click here to downlaod the user manual to your Mitsubishi TV. It have all the details.

Mitsubishi... | Answered on Apr 20, 2012


If the model as indicate here (WS-55807) YOU may have two problems: Convergence and a audio problem.

In customer menu select convergence and with the Mitsubishi remote try to adjust the grid of lines so no red etc--if bowed it will not adjust.

This would mean the two stk-392-570 convergence chips this model uses need to be replaced(I have free start to finish instructions for that).

The no sound may and is likely a second issue: speakers in the menu may be switched off etc.

If both happened at the same instant this model has a hard reset(not from front of set but with a 4 digit code and done with the Mitsubishi remote) This sets everything except convergence adjustments back to factory original.

It is called the OPTION menu.

So, did both issues happen at exact same time or what?

Parts for the convergence repair are under 30 dollars total and I can tell you where.

Questions?

Mitsubishi... | Answered on Mar 29, 2012


I found that by simultaneously holding down the remote control "power" button and "volume" button for about 30 seconds the blinking light would go out and a solid green light would come on. Even though the solid green light came on the unit would still not power up. After doing this several times however the unit did finally power up in a normal mode and appears to be working again

Mitsubishi... | Answered on Feb 28, 2012


If you forget your passcode, you can view the locked TV without entering your passcode. This is done by pressing the number 9 and QV buttons on the remote TV control at the same time, when your
password is requested. This process temporarily unlocks the TV.
When entering the V-Chip Lock menu, this process deletes your old passcode and prompts you to enter a new passcode.

Mitsubishi... | Answered on Nov 20, 2011


MOST OF THESE SETS HAVE A SELF DIAGNOSTIC:

UNPLUG TV AND THEN PLUG BACK IN---TURN ON---GREEN POWER LIGHT COMES ONFOR A MOMENT AND GOES OFF.

PRESS AND HOLD "device"(input) and"menu" buttons on front of tv for at least 5 seconds and then release bothtogether.


Watch for power light to blink in a sequence:

1 blink-then 2 blinks-------no error

2 blink-then 1 blink-------X-ray protection

2 blink-then 2 blink-------SHORT PROTECTION*******

2 blink-then 3 blink---------deflection circuit problem

2 blink-then 4 blink---------vertical circuit problem


******2, then 2 is most common---usually means one of the fuses that protectthe Convergence IC or IC's is blown---set will detect no voltage to convergenceIC and shut down.


SET WILL REPEAT BLINK ERROR CODE UP TO 5 TIMES ANDTHEN TO GET IT TO REPEAT MORE YOUHAVE TO UNPLUG SET AND TRY TO TURN ON AGAIN.


IF IT IS 2 AND THEN 2---USUALLY
CONVERGENCE CIRCUIT PROBLEM

let me know what you find--hope that you find 2 blinks, a pause and twoblinks--this is the most common and easiest to fix.

Let me know what you find and I will assist you.

SD TECH

Mitsubishi... | Answered on Sep 13, 2011


GOOD DAY; TRY THESE CAUSES: Cause #1 1. CHECK IC7A00 PIN 53 FOR LOW LOGIC (0 VOLTS), IF HIGH (3.3 VDC) CHECK FOR SHORTED D9A31 PART # 264P045050 AND OPEN R9A33 220 OHM 1/4 WATT ON THE POWER PCB. Cause #22. More than likely your TV has "COOLANT" (ethylene glycol) on the circuit boards. This fluid comes from the CRT's (picture tube) this fluid is used to keep the CRT's cool, such the name. This fluid from the CRT's leak when TV is on for long periods of time, the chamber expands and the seals leak.

One can remove this fluid by using "acetone" & small brush. The fluid is hard to see, use bright light, they spots can be smaller then a DIME. Also, the fluid can corrode the parts and traces on the boards. To protect the TV in future place heavy plastic or thick cardboard over affective area, make sure TV has proper air flow around TV.

If after the fluid has been removed and TV still does not work, call an Authorized Service Center to come out and repair TV after giving you an Written Estimate. The boards are not available.

Always try resetting the TV by unplugging it for one minute then plug back into A/C outlet and ALWAYS UNPLUG TV BEFORE ATTEMPTING ANY REPAIR ON THE TV.

Good Luck, big IRISH.

Mitsubishi... | Answered on Sep 10, 2011


Hi,

May I know if the picture looks like these?


jdvillanueva_123.jpg



jdvillanueva_124.jpg



Jdvillanueva

Mitsubishi... | Answered on Sep 09, 2011


DID YOU TO THE SELF CHECK THIS MODEL HAS?

SD TECH

Mitsubishi... | Answered on Aug 17, 2011


There's a good chance you have failing electrolytic capacitors most likely in the power section.
Any caps in this or other sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably turn on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.

If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD and projection TVs and monitors.
The parts are cheap, and skill required is minimal.

Mitsubishi... | Answered on Jun 28, 2011


If you're good at soldering, Part #s STK392-570 may both be bad. If you tap on it and it works. Pull out the board with the 2 chips, (mark all the connectors) with the TV off. Replace these. You can find them on Ebay (at least to see what they look like). First go to the spot under the board where both of them are and resolder each pin avoiding bridges. Also resolder all the spots that you see the plugs you labeled at. With the TV on using one hand, with one hand in your pocket, carefully physically feel the metal heat sink the parts are connected to. If they are cold, you probably have bad fuses. They are usually beige. With the T.V. off and a meter, check these for continuity.

Mitsubishi... | Answered on Jun 17, 2011


hi,
Is there is white horizontal thine line on all over the screen then the screen voltage of you TV is high. Can be caused by bad base socket in the picture tube neck, faulty focus/screen block. Check the two things. You can see the base socket at the picture tube neck replace all the three base sockets for the three CRTs. if problem remains then you have to replace the focus/screen block. focus/screen block is one through which you can adjust the screen voltage and focus voltage. If the potentiometer in side it have some problem then this problem can occur. Have added the image for two items for your reference.
ajin_g_50.gif
ajin_g_51.gif
ok

Mitsubishi... | Answered on Jun 09, 2011

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